7" Super Slim monitor with memory, Touch Screen 1. Lock control / Broadcast / Calendar / Alarm clock / No disturb / Call transfer 2. Make calls between monitors 3. Monitor doorbell or CCTV cameras 4. Monitor listening to another monitor 5. Capture & record about 100pcs images with internal flash 6. Auto take pictures from doorbell camera 7. Manual take a picture or record a video from doorbell 8. DVR function, with both Video and audio 9. Supports Message leave 10. Answer machine function 11.Multimedia manager & Photo frame 12.Door Panel unlock & Indoor monitor unlock Max. supports: 1).2 outdoor doorbells+4 indoor monitors+2 CCTV cameras 2).1 outdoor doorbell+4 indoor monitors+3 CCTV cameras Door camera 1/4 High-Definition color camera , Night Vision Lightning protection Pinhole 110 view degree Waterproof IP66.